21120010221022 has 16 divisors (see below), whose sum is σ = 32772715408800. Its totient is φ = 10195778101600.

The previous prime is 21120010221007. The next prime is 21120010221043. The reversal of 21120010221022 is 22012201002112.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 21120010220987 and 21120010221005.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5383272 + ... + 8439172.

It is an arithmetic number, because the mean of its divisors is an integer number (2048294713050).

Almost surely, 2^{21120010221022} is an apocalyptic number.

21120010221022 is a deficient number, since it is larger than the sum of its proper divisors (11652705187778).

21120010221022 is a wasteful number, since it uses less digits than its factorization.

21120010221022 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3175091.

The product of its (nonzero) digits is 64, while the sum is 16.

Adding to 21120010221022 its reverse (22012201002112), we get a palindrome (43132211223134).

The spelling of 21120010221022 in words is "twenty-one trillion, one hundred twenty billion, ten million, two hundred twenty-one thousand, twenty-two".